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Posted to notifications@pekko.apache.org by "He-Pin (via GitHub)" <gi...@apache.org> on 2026/06/27 21:27:42 UTC
[I] typed actor 日志缺少 sourceThread MDC 值 [pekko]
He-Pin opened a new issue, #3214:
URL: https://github.com/apache/pekko/issues/3214
### Motivation
Typed actor 的 MDC（Mapped Diagnostic Context）不包含 `sourceThread` 信息，而 classic actor 的 Slf4jLogger 会设置线程名。这导致 typed actor 的日志无法关联到执行线程，影响问题排查。
### 当前代码行为
`ActorMdc.scala` 中 `setMdc` 方法只设置了以下 MDC key：
- `pekkoSource`（actor path）
- `sourceActorSystem`
- `pekkoAddress`
- `pekkoTags`
缺少 `sourceThread`（或等效的线程名 MDC key）。
对比 classic actor 的 `Slf4jLogger.scala:134`：
```scala
MDC.put(mdcThreadAttributeName, logEvent.thread.getName)
```
### 预期行为
typed actor 的 MDC 应包含 `sourceThread`（或 `pekkoThread`），值为当前执行线程的名称，与 classic actor 保持一致。
### 代码证据
- `actor-typed/src/main/scala/org/apache/pekko/actor/typed/internal/ActorMdc.scala:24-38` — `setMdc` 方法，仅设置 4 个 MDC key
- `slf4j/src/main/scala/org/apache/pekko/event/slf4j/Slf4jLogger.scala:134` — classic actor 设置 `sourceThread` MDC
### 复现方式
配置 MDC 日志，从 typed actor 发送消息，检查日志输出中是否有 `sourceThread` key。
### 影响范围
- 模块：`pekko-actor-typed`
- 影响所有使用 MDC 进行日志关联的 typed actor 用户
- 在多线程环境中排查问题时缺少关键上下文信息
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Re: [I] typed actor 日志缺少 sourceThread MDC 值 [pekko]
Posted by "He-Pin (via GitHub)" <gi...@apache.org>.
He-Pin commented on issue #3214:
URL: https://github.com/apache/pekko/issues/3214#issuecomment-4822168713
Closing to recreate in English with independent verification.
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Re: [I] typed actor 日志缺少 sourceThread MDC 值 [pekko]
Posted by "He-Pin (via GitHub)" <gi...@apache.org>.
He-Pin closed issue #3214: typed actor 日志缺少 sourceThread MDC 值
URL: https://github.com/apache/pekko/issues/3214
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